Power
There are numerous kinds of forklifts which are powered by propane gas. Forklifts which utilize propane are easy to refill. The gas is stored inside a pressurized tank on the rear of the truck. The propane is pushed into the engine, where it is converted into vapor and afterward the vapor mixes with air. The throttle of the forklift is utilized to control the flow of vapor. A spark plug ignites the mix of air and vapor creating pressure which moves the pistons. The pistons turn the wheels and run the hydraulic pump.

As the kinds of forklifts that are operated by propane have low emissions and are clean burning, they are suitable to be used within other buildings and warehouses.

Hydraulics
What enables a forklift to raise and move heavy stuff from one place to another is the hydraulic system. Cylinders, a pump and tubes make up the hydraulic system. The pump forces dense fluid in the tubing and into the cylinders. The pressure build up pushes a piston, which raises the forks. When the forks are lowered by the operator, the hydraulic fluid flows out of the cylinders and back into the pump.

Steering
Where maneuverability is needed, propane forklifts are the most suitable. Unlike an automobile, a forklift utilizes its back wheels to turn, which enables the forklift to turn fast on a tight radius.